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Integro-Differential Analysis of Wave Propagation in an Inhomogeneous High-Temperature Plasma

Research Project

Project/Area Number 62580007
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field プラズマ理工学
Research InstitutionOkayama University

Principal Investigator

FUKUYAMA Atsushi  Okayama University, Faculty of Engineering, 工学部, 教授 (60116499)

Co-Investigator(Kenkyū-buntansha) TOTSUJI Hiroo  Okayama University, Faculty of Engineering, 工学部, 教授 (40011671)
FURUTANI Yoichiro  Okayama University, Faculty of Engineering, 工学部, 教授 (70108124)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1988: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1987: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsPlasma / RF heating / Wave heating / Wave propagation / Integro-differentail equation / Spatial inhomogeneity / Wave-particle interaction / 波一粒子共鳴相互作用 / 空間不均一 / 波-粒子共鳴相互作用
Research Abstract

In order to rescribe wave-particle interactions in an inbhomogeneous plasma, such as the resonance absorption in an unmagnetized plasma, the cyclotron absorption in a plasm with an inhomogeneity along the magnetic field. the finite larmor radius effects, we have formulated the integro differential analyses of wave propagation and absorption and developed numerical codes for solving the wave equation as a boundary-value problem.
The analysis of the resonance absorption in an unmagentized plasma has shown, for the first time, the spatial profile of the power absorbed by landau damping and the total absorbed power agrees with previous differential analyses including collisional absorption.
The cyclotron absorption along the inhomogeneous magnetic field has been studied in a one-dimensional model. The spatial profile of the absorbed power and the mode conversion rate have been calucated for the electron cyclotron resonance heating.
The wave propagation in a plasma in the presence of high energy particles has been formulated in an integro-differential form. In addition to the effects of large larmor radius compared with the wave length, the higher-harmonic cycoltron absorption has been also included. The numerical code has been successfully applied to the analysis of the ion cyclotron resonance heating even in the presence of an strongly anisotropic high energy tail of resonant ions. the absorption by the 4 MeV -particles produced by fusion reactions has been also calculate for a rector-grade plasma and the optimum frequecy range the heating and current drive has been examined.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] T.Morishita: Journal of the Physical Society of Japan. 57. 1238-1254 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] A.Fukuyama: Plasma Physics and Controlled Nuclear Fusion Research 1988. in press. (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] A.Fukuyama: submitted to Fusion Technology.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] T. Morishita: "Numerical Simulation for ICRF Minority-Ion Heating in a Tokamak" Journal of th Physical Society of Japan. 57. 1238-1254 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] A. Fukuyama: "Feasibility of Ignition by Intense ICRF Heating" Plasma Physics and Controlled Nuclear Fusion Research 1988. in press. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] A. Fukuyama: "Integro-Differential Analysis of ICRF Wave Propagation in Tokamaks"

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] A. Fukuyama: "A Frequency Survey for ICRF Heating and Current Drive in ITER" Fusion Technology.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] T.Morishita.: Journal of th Physical Society of Japan. 57. 1238-1254 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] A.Fukuyama.: Plasma Physics and Controlled Nuclear Fusion Research 1988. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] A.Fukuyama.: Submitted to Fusion Technology.

    • Related Report
      1988 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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